剧毒

Was synthesized from cyanoacetic acid and diethylamine via DCC coupling under mild conditions.

中间体5 的制备由氰基乙酸在二环己基碳二亚胺作用下经酰胺化一步制得，条件温和，收率较高，避免使用剧毒的氰化钠。

Electrosynthesis is a new method for preparation of αalanine. There is few reference about it, but electrosynthesis has a high selectivity and a high current efficiency. In addition, the operating condition is mild, and the reaction process is easy to be controlled.

有关电化学法合成α—丙氨酸的文献仅有两篇，虽然这方面的研究很不充分，但是电合成法避免了剧毒物质的使用，操作条件温和，通过选择电极材料、电极电位和电流密度等电化学参数，能够控制合成发应的进程，而且电合成可以具有很高的选择性和电流效率。

An explosive salt of fulminic acid, especially fulminate of mercury .

第三十一条禁止将含有汞、镉、砷、铬、铅、氰化物、黄磷等的可溶性剧毒废渣向水体排放、倾倒或者直接埋入地下。

The SR-71's unusual silhouette caused workers at a U.S. base in Okinawa, Japan, to refer to the plane as the habu —a poisonous black snake indigenous to the island.

SR-71不同寻常的轮廓让在日本冲绳岛美军基地的工人们将它看作响尾蛇-该岛土生土长的剧毒黑蛇。

To achieve such a miracle, the semiconductor industry has gone to extremes , using the world's most toxic substances like arsine, hydrofluoride and the like.

7 但是，为了这种&奇迹&，半导体技术也到了无所不用其极的地步，世上最剧毒的物质如砷化氢、氟化氢等都派上了用场。

"To achieve such a miracle, the semiconductor industry has gone to extremes, using the world's most toxic substances like Arsine, Phosphine, Hydrofluoride, Hydrobromide and the like."

但是，为了这种&奇迹&，半导体技术也到了无所不用其极的地步，世上最剧毒的物质如砷烷(AsH3)、磷烷(PH3)、氟化氢、溴化氢，等一长串毒品全都用上。

To achieve such a miracle, the semiconductor industry has gone to extremes, using the world's most toxic substances like Arsine, Phosphine, Hydrofluoride, Hydrobromide and the like.

但是，为了这种&奇迹&，半导体技术也到了无所不用其极的地步，世上最剧毒的物质如砷烷（AsH3）、磷烷（PH3）、氟化氢、溴化氢，等一长串毒品全都用上，很快连同步加速器也要用上去了。

In order to keep consistent with GB 50235-97 "Construction and Acceptance Specification for Industrial Metal Piping Works" and SH 3059-2001 "General Regulation on Material Selection for Petrochemical Piping Design", this revision has only defined the extreme harmful medium as virulent medium, and, piping with the transmission hypertoxic levels of moderate harmful and gentle harmful medium is added in the application scope.

本次修订为保持与 GB 50235-97《工业金属管道工程施工及验收规范》和 SH3059-2001《石油化工管道设计器材选用通则》协调，仅将毒性程度为极度危害介质定义为剧毒介质，同时在适用范围中增加了输送毒性程度为中度危害和轻度危害介质的管道，并增补了有关施工及验收规定。

A salt or ester of hypochlorous acid.

乙硫磷一种剧毒的液态有机磷酸酯杀虫剂，分子式为

This project quests for a new route for synthesizing polyurethane not only with mild reaction conditions but also without environmental pollution basing on the fact that virulent phosgene used in the industrial process to produce isocyanic acid ester has badly been polluting the environment at present. And this project belongs to the research in basic application science.

本项目基于目前工业生产异氰酸酯过程中采用剧毒光气对环境造成严重污染这一事实，探索出了一种反应条件温和、无环境污染的新的聚氨酯合成路线，属于应用基础研究。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。